In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Example Input: Question: Who are the Gestapo? Passage:On 30 June 1943 he was arrested by the Gestapo in Warsaw and sent to Berlin. Rowecki was arrested due to his betrayal by Ludwik Kalkstein "Hanka", Eugeniusz Swierczewski "Genes" and Blanka Kaczorowska "Sroka" who were Gestapo agents. All of them were members of the Home Army but in fact collaborated with the Gestapo. Swierczewski, Kalkstein and Kaczorowska were sentenced to death for high treason by the Secret War Tribunal of the Polish Secret State. The sentence on Eugeniusz Swierczewski was carried out by troops commanded by Stefan Rys ("Jozef"). They hanged Swierczewski in the basement of the house at 74 Krochmalna Street in Warsaw. Kalkstein received protection from the Gestapo and was not harmed. He fought in a Waffen SS unit during the Warsaw Uprising of 1944 under the name of Konrad Stark. After the war, he worked for the Polish Radio station in Szczecin and was later recruited as an agent by the Urząd Bezpieczeństwa. In 1982, he emigrated to France; he died in 1994. Blanka Kaczorowska also survived the war. Her death sentence was not carried out because she was pregnant. After the war, she also worked as a secret agent for the Urząd Bezpieczeństwa and later for the renamed Służba Bezpieczeństwa. She emigrated to France in 1971. She died in 2002

Example Output: b

Example Input: Question: Which Bristol City F.C. manager that Goodfellow played for had a longer tenure with the club? Passage:He made only a handful of appearances at the Britannia Stadium in 2003–04, though he earned a £50,000 move to Bristol City in the January transfer window. He played in the play-off final defeat to Brighton & Hove Albion, replacing defender Tony Butler on 88 minutes as manager Danny Wilson made a late attempt to save the game. He did not feature heavily at Ashton Gate and instead was loaned out to Port Vale in October 2004. The next month Swansea City manager Kenny Jackett was on the lookout for a quality winger, Goodfellow meanwhile was prepared to go out on loan to the League Two club. Jackett managed to persuade City to allow Goodfellow to join the "Swans" on loan. He impressed at the Welsh club and his loan spell was extended the following month. However, he was quickly recalled to Ashton Gate after a spate of injuries at the Bristol club. Soon after Swansea attempted to buy Goodfellow off City, however, City manager Brian Tinnion informed Goodfellow he still had a future at the club. Tinnion was expecting at least what they paid Stoke for him and Swansea were unable to comply. In March 2005 he joined Colchester United on loan until the end of the season and scored once against Peterborough United.

Example Output: b

Example Input: Question: How long did Aulus Plautius live after capturing the lands south of the River Trent? Passage:The general outline of the Roman conquest of Britain during the 1st century AD is recorded by historical sources; for the involvement of specific forts historians depend on archaeological excavations. This part of Britain was occupied by a tribe known as the Cornovii. In AD 46–47 the Roman Army led by governor Aulus Plautius had probably occupied the lands to the south of the River Trent. Late in 47 the new governor of Britain, Ostorius Scapula, began a campaign against the tribes of the western mountains (modern Wales). Caratacus, their leader, was defeated in battle in AD 50 and fled to the Brigantes who occupied the Pennines. Their queen, Cartimandua, came to terms with the Romans and handed Caratacus over to them. Ostorius died and was replaced by Aulus Gallus who brought the Welsh borders under control but did not move further north or west. It was at about this time that the fort at Strutt's Park was built. It probably lay not far south of the border between Roman territory and that held by the Brigantes, who were now an allied or subject kingdom.

Example Output:
a

